Thanks so much for playing my game and for your words and feedback! I'm so glad that you liked the cotton character and that you perceived the game as fun. I plan to upload an even cuter cotton in the next releases :).
Thanks for letting me know about the controls issue, I will make a workaround so that if you are moving right and press left, it automatically moves left, and vice-versa. I'm used to play releasing the key when I don't intend to move in that direction, thus never realized of that bug. Real thanks as I need this kind of comments to improve my game. The collision boxes might be too big indeed. I recently changed all maps and maybe some colliders are not set properly. Do you remember which object gave you that impression?
I plan to release future updates of the game in this month. I could like to have a stable product by the first days of October. Stay tuned as I will implement some of the improvements that other users as you indicate.